CONTACT For Appointments with Dr. Allen contact: 11860 Wilshire Blvd., Suite 200 Los Angeles, CA 90025 (310) 445-6600; FAX (310) 445-6601 Email: DA@DavidAllenMD.com Office hours: Monday to Thursday: 9:00 AM - 5:00 PM Friday: 9:00 AM - 2:00 PM